KARACHI - Chairman, Pakistan Peoples Party (PPP) Bilawal Bhutto Zardari on Saturday said that Indus civilization was the crown of Pakistan and Sindh’s culture and in fact, also a message of unity and harmony. In his message on the eve of Sindh culture day being observed today (Sunday), the PPP chairman said that this was the day of youth who were the real heir of this rich heritage. Bilawal Bhutto Zardari said that rich music or cultural dance of Mehran valley had given the arts a new colour and there was a need to learn how to make our cultural activities a platform for promotion of our social as well as economic activities as well. PPP chairman said that Sindh culture day might be celebrated every year with a new theme like the days commemorated by the UN. Bilawal Bhutto Zardari said that diversity of cultures, religions, ethnicities and creed was the new nomenclature of modern peace and harmony. He extended heartiest congratulations to all those celebrating the Sindh culture day in the four provinces, Azad Jammu and Kashmir (AJK), Gilgit-Baltistan (GB) and Islamabad.